Time-limit annunciator.



PATBNTED DEC. a1, 1907.

A. SANDERS. TIME LIMIT ANNUNOIATOR.

APPLICATION I ILED DEC. 6, 1906.

Wwmsws.

IZWMMM ADOLPI'I SANDERS, OF NEW YORK, N. Y.

TIME-LIMIT ANNUNCIATOR.

Specification of Letters Patent.

Patented Dec. 31, 1907 Application filed December 6. 1906. Serial No.346,544:-

To aZZ whom it may concern:

Be it known that I, ADOLPH SANDERS, a citizen of the United States,residing in the borough of Manhattan, city, county, and State of NewYork, have invented certain new and useful Improvements in Time-LimitAnnunciators, of which the following is a specification.

The object of my invention is to afiord a simple automatic device forannouncing audibly the time limit for telephone calls and for similarpurposes, including the keeping of games played upon a time basis, as inprogressive euchre and other similar card games, pool, and other gamesof skill,such games or the sub-division of time being usually ofrelatively short duration,usually lasting for a period of five minutes,more or less, according to the conditions of the game.

I11 keeping game time as above indicated by means of an ordinary clock,watch or time piece, it is diflicult to do so accurately orsatisfactorily, and there is opportunity for question and dispute, allof which I obviate by my invention which consists of the combination andarrangement of parts herein described and claimed specifically.

In the accompanying drawings, Figure 1, is an elevation of the front ofmy automatic time-limit annunciator; Fig. 2, a rear elevation; and Fig.8, a side view of the same. Fig. 4, is an elevation of parts sufiicientto illustrate a modification.

C represents the casing which is of any d esired form and constructionand in which is mounted suitable clock work movement m, for actuatingthe central spindle s, on the outer end of which is mounted thedisk D orequivalent means of supporting a series of equi-distant trippingshoulders (Z, (Z, say for instance twelve in number if the period to beannounced is five minutes and the said tripping shoulders are to rotateonce an hour.

It is obvious that the relative distances between the tripping shoulders(Z, (Z, and the speed of rotation of their common support may beotherwise arranged and provided for with like result or to suit therequirements of special uses, and I do not limit myself in this respect,the essential feature being the provision of means whereby the bellhammer 72., may be tripped. at uniform, prescribed periods of time. Thelever h, of said bell is pivotally supported on the casing C, at c,

and its lower or shorter arm 71?, is bent so as to P10160i) normallyacross the path of the tripping shoulders d, (1, under the tension ofthe spring 6, which tends constantly to hold the lever h, against a stopa, in which position the hammer it, almost touches the rim of the bellB,-the resilience of the metal of which the lever h, is composed beingrelied upon to effect the strikingof the bell and the slight retractionof the hammer after the blow whenever the lever h, is tripped by reasonof the engagement of its lower arm 72.2, with a tripping shoulder andits sudden release therefrom under the action of the spring 6.

K represents a key for winding the clockwork movement and L a device forstopping the movement of the works when desired.

This stopping device may be of any well known or desired form andconstruction, that shown in the drawings consisting simply of a pushbutton Z, on the outer end of a rod Z, on the inner end of which ismounted a brakeshoe or contact Z which may be made to rest against thebalance Wheel m of the clock work movement m, when it is desired to stopthe movement temporarily or otherwise.

It is obvious that the same result may be accomplished by dogging orholding other parts of the movement, and hence I do not limit myself inthis respect other than to a manually operated stopping device for usein conjunction with my automatic time-limit annunciator.

In the modification shown in Fig. 4, I represents a pointer mounted uponthe same spindle of the clock work upon which the disk D is mounted. andarranged to indicate on the stationary concentric index '6, the numberof times the bell has been struck, and hence the several intervals oftime that have elapsed since the device was set and started. This inconjunction with the audible tally effected by the tripping shouldersai'l'ords absolute and indisputable evidence of the'periods elapsingwhile annunciator is in action.

What I claim as my invention and desire to secure by Letters Patent is,

In a device of the character designated, the combination of the clockmovement, a disk on the main spindle of the clock movement, a series ofequi-distant tripping shoulders on said disk and concentric to the mainspindle, a pointer on said spindle moving with the said tripping disk, astationary i11- dex concentric to and adjoining the periphery of saidtripping disk, a hammer lever arsubstantially in the manner and for thepurranged to be actuated successively by said pose described. trippingshoulders, a retractile spring which tends to hold the hammer lever inits normal 5 position, a bell arranged to receive the stroke Witnesses:

of said hammer lever, and a hand device for D. W. GARDNER, stopping andreleasing the clock movement, GEO. WM. MIATT.

ADOLPH SANDERS.

